Adding-tabulator.



PATENTBD AUG. 11, 1903.

A c. P. WETMORE.

ADDING TABULATDR. .APPLICATION FILED UGIZB, 1905.

7 SHEETS-SHEET 2.

PATBNTED AUG.11,1903.

o. P. WETMORE. ADDING TABULATOR.

-Y APPLICATION FILED AUG. 28, 1905.

frauen/07 ADDING TABULATOR.

APPLICATION :FILED AUG. 28', 1905.

' No. 895,523, v

'I SHEETS-SHEET 4.

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fifa/'rags UNITED srnrns i yiginnr on;

. CHARLES i. WETMORE, or CHICAGO, rLLINoIs, ASSIGNCR 'ro Coiimoenirnxoiiriinv, 0F

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Annm'mBULA'roRf To all 'whom it may concern. A

Be it known that I, CHARLES P. Wn'rnoin, a citizen ofthe United States, residing in Chicago, in the count of Cook and State of Illinois, have invente a new vand useful Improvement in Adding-Tabulators, of which the following is a specification.

This invention relates to improvements in adding tabulators. And the invention consists in the novel construction of parts and devices and novel combinations of nars and devices herein shown and described.

l ln the accompanying drawings forming a. art of' this s eciiication, and in which simiar figures o reference indicate like parts throughout, Figure 1 is a. side elevation of the adding mechanism of the Well-known coniptograph, the side frame of the machine being shown in dotted lines. Fig. 2 is a' side elevation aitly in section, and upon a difierent scale om Fig. 1, showing a. portion of the paper feed and printing mechanism of the coniptograph. Fig. 3 is a side elevation, partly in section, of the motor and its connection to the comptograph. Fig. 4 is en end elevation of the mechanism shown in Fig. 3. Fig. 5 is a section on line 5 5 of Fi 3. Fig. 6 a section on line 6 6 of Fig. 5. lagig? e. detail of the contact segments. Fig. 8 a section on line S-S of Fig. 3. Fig. 9 a section on line 9-9 of Fig. 3. Fig. 10 is a diagram of the electric circuits. Fig. 1 1 is a. view similar to Fig. 3, but showing the parts in the position assumed after the depression of the key in said figure. Fig. 12 ,is an elevation showing the parts in the osition which they oceu y after the key idas been depressed and t e motor has made about one-fourth of itsirorking stroke. Fig. 13 is an elevation showing the same parts with the crank 'ust on the half Way loint of its stroke, and ig. 14 is a vertical ongitudinal section through the entire machine, reproducing Fig. 13 of the stent to Dorr E. Felt, No. 694,955, herein re erred to.

The comptoffraph is a Well known machine largely in usefliaving a key board consisting of several columns of keys, each column con prisiiig-the nine digits of the Arabicnunierel system, one being the units column, one the tens column, one the hundreds column, and

so forth, to the highest order the machine is capable of handling. To o erate the machine, s for example in edging a series of numbers together, one key in each column to correspond to the figures of the number Speceeton of Letters-Patent. p Appiicaaon mea August 28,1905, serial No. 275,991. l f

patented Aug. 1 niece.

is depressed by the finger of the operator. Y This sets a mechanism in position,y such that when a hand lever is subse iientloperated a numeral wheel is rotated t 'oug 1 such portion of a complete revolution as will 5() represent the relation of the fi ure ontbe key\ l to a full revolution; and at t ie same time a segment coiitaining printing type on its periphery is swung into position and a .ti-pe representing the figure on the key touched is presented to a printing-` line; and when the and lever, above mentioned, is operated, this ty e is made to imoress itself upon a sheeto paper.' The machine does this print ing in parallel columns on a broad sheet of aper. The use of the broed sheet of paper instead of a continuous roll or: ribbon, al-

though otherwise advantageous, involves the A danger that the operator may forget or overlook the fact that the end of the sheet has been reached in the rinting of a column, and thus print the num er in the air instead of on the sheet, and so lose the record of his operations. To avoid this it has been customary to provide the ccmptograph With 30 means for rendering the adding and print` mechanisms inoperative, and in the referre construction they are autoniatical y locked by means which may be brieiiy described as follows: The ,sheet-of paper is made to pass in contact with a slotted surface, and a. pivoti ed finger is made to press against the spe r opposite the slot. To prevent the ten ency-- to tear the pa er it is usuel to employ several'- fin ers. So ong as the paper is presentfgo eit. er stationary or feeding along, 1t keeps the iinger or 'lingers out of theslot or slots; but so soon as the paper passes the nger, the latter enters the `slot, and this movement of the finger in so entering the slot causes the machine to be locked so that it can neither add nor print until the sheet is fed back and a.

lnew column started, or a new sheet put in. place.

It is the purpose of `the present invention 10Q y to provide means for driving the operating leverfo a machine of this character by power, so that the operator, instead of being required to operate a lever by hand with sufficient force to perform the several operations mentioned above, may be able to set a. source of power' in motion at the right moment,- by

merely touching a ke connected to a suitable starting lever, w iich latter will o en a,

valve, connect a clutch or close a-switc acpany, for whom as its employee cording as the power may be a uid or vapor sheet of paper be not in place to receive the or gas engine, a water engine, a revolving power shaft, or an electric motor.

The invention consists in combining with Vthe. comptograph or tabulating adding machine, a niotorin such manner that when the starting lever 1s operated, i f the sheet of paer is in place, the ower will be transmitted om its source to t e comptogra h. mechan- Y ism, and the latter will be cause to operate to do the adding and the printing, and if the printing properly, such operation of the starting lever will not cause the 'comptograph to operate. And the invention furtherA consists in bringin about the above conditions byconnecting t e motor, or a power shaft or an -electric motor, by means of a spring or yielding connection to the driven sha'ftof the comptograph, so that when said driven comptograph shaft is locked, or is otherwise rendered inoperative or offers an unusual resistance, the spring will stretch and this will cause the motor to move the starting disengage the clutch or open the switch, as-

lever in such direction as to close the valve,

the case may be, All of which will be better understood from the following description:

Although, as before stated, any kind of motor may be used, the Comptog'raph Corrimade this invention, hasA preferred to use an electric motor as being the compactest and most easily cared for kind. And said company has had an electrical engineer design and construct a suitable form of motor and connectgraph to which power is applied to operate the machine after the keys have been, set. This main actuator is connected by suitable levers te., with the shaft 21.A On the shaft 21 is mounted a cam.22 resting on the stop 23, and having a toothed segment 24 in p`os1- tion to be engaged by the pivoted dog 25,

said dog being set toward the segment by the spring 26. The sheet of paper is shown at 27 resting beneath the guide plate 28, in which plate is aslot 29. 30 is a inger` resting up against the sheet of paper opposite the slot n 29, andheld from entering said slot by the presence of the paper. This finger is mount ed, as will be seen, en a ivoted bar 31.; and resting up against said ai' 31 isa lever 32,

the outer end of which by the connecting rod 33, is connected with the dog 25.A it Will be seen that when the paper passes out from between the fin er and the slotted plate 23,

the tension of t e spring 26 being no longer restrained, will throw the dog into engagement with the segment 24 of the cam 22,

-thus locking shaft 21 and shaft 20 and consequently the operating rock shaft ofthe comptograph. The machine may be unlocked by turning back-'the feed roll to bring the sheet of paper back to its unlocked position, or b inserting a new sheet of aper. All of this more fully described in atent No. 694,955 of .March 11, 1902 to Dorr E. Felt.

Referrin to Fig. 3 and the subsequent figf ures: 34 incicates an electric motor, upon the t main actuating shaft 20 by means of the` bracket 41, because the lever 40 has its longer arm connected by a spring 42 to said bracket, and this spring is adjusted to be strong enough to transmit the power of the motor to the shaft 20 and thus operate the comptograph, under ordinal circumstances;

but if the compte raph sha be lojcked, then the strength of t e spring 42 will be overcome by the motor and the lever 40 will move. When the main actuating shaft 20 is locked by means of the locking deviceef the comptograph, it is of course, impossible for the pitman 38 to cause it to move either d1- rectl;r through the bracket 41 or indirectly through'the rever 40 ivoted on said bracket, because the long en oi the lever 4D is connected to the bracket itself bymeans of the spring 42. Nothing could rotate the'shait 20 when it is locked. The spring lever is pro- `videdin order that the pitman may meve suciently to cut one power from the motor, even when the shaft 2O is locked. .-The pitman is permitted to ,move because its u per end is attached at the pivot 39 to the s ort end of the lever 40, Aand the lever 40 isvv pivoted on the bracket 41 which has an arm projecting from the. shaft 20. On the other hand, when the shaft 2O is not locked and the motori-eci rocates the pitnian 38 at'such a time, the atter through the pivot 39 oscillates the bracket arm 41 because the pitman is connected to said bracket arm 41 t the lever 40 to swing en its own ulcrum, so., that in effect at this time, the pitmanisrigidly connected to the bracket 41. Thus it will be seen that at times there between the pitman 38 and the bracket 41 an unyielding con-v nection, and at other times a yielding connection, the unyielding connection existing when the shaft 20 is not locked, and the yieldroughthe short arm of the lever- 40, and further beias 120 ortion of the bracket ing connection existing when said shaft is locked. 'Pivoted to the same pivot 39 is the lever 43, the upper arm of which stands beneath the pivoted plate 44, which is held by the spring 65 in position to be depressed by the starting key 45. The lower end of the lever 43 is connected by a spring connection 46 .to the switch lever 47 set to oscillate be` tween the two contact points 48, 49, to throw the power on and off from the motor through ghe connections indicated in the diagram at 50 is the swinging camin the path of the roller 51 that is carried at the upper arm'of the lever 43. Whenthe gear wheel ,36 is rotated and the bracket 41 pulled down through its are of movement to rock shaft 20, this rol ler. 51 strikes the under surface or'4 the swinging cam 50 and ushes it aside on the cam cannot swin ready to begin an operation.

be pushed down, the pivot plate 44 will down stroke of the pitman 38; but on the upstroke of the pitman the roller 51 engages the upper surface of the cam 50, and as the in that direction, the uper arm of the ev'er 43 is 'held while the racket 41 continues vto move and this causes the lever 43 to swing, thus reversing the switch 47 and bringing it into contact again with the contact 48 as before, so that at each revolution of the ear wheel 36. brought about by depressing t e starting4 key 45 the switch is brought into contact wit the contact point 49, the rock .shaft 20 is swung through its complete arc, and the switch is brought back again to its contact 48, and the mechanism is in position to start again. 'i In order that the operation may more fully appear, we will once more follow it through, beginning with a movement of the key 45. In Fig. 3 the mechanism is shown in the completed position; that is to say, at rest, and

thereby be depressed, and bearing against the roller 51, this downward movement will be imparted to the upper arm ofthe lever 43, whose fnlcrum is at 39 on the end of the pitman 38. Le pit man affords a resistance vto ra downward movement of the fulcrum 39,

and consequently the lever 43 swings on the ulcrum and brings a tension upon the spring connection 46, one end of the spring being connected to the lever 43 and the other end being connected to the switch 47. The

- movement of this spring throws the switch in the opposite direction from the movement of the lever and causes the switch to make coni tact with the point 49 and remain in such contact. And this puts the current upon the motor, causing the latter to revolve. And in course of the revolution, the roller 51 on the lever 43 cornes in contact with the cam 5 0 which restores the lever to its original position, reversing the switchagainto cut the motor out. The up er side of the part 50 acts as the cam for t is purpose.

Now if the key The plate 44 is held in normal position (as in Fig. 3) by the 'springhown at the axis ofthe plate.

normally elevated. normal,v action. But if the comptograph the starting key is operated, and the switch thereby reversed, then in that'case, as theshaft 20 cannot be rotated the power of the motor is exerted through the pitman 38 to pull down on the short end of the lever 40 overcoming the tension of the spring 42.v

This movement of 4he lever 40 produces a movement of the lever 43 because the point of attachment of the itman 38 and lever 40 is the fulcrum 39 of t e lever 43. And this movement of the fulcrum 39 throws over the switch 47 into the other contact position, thus cutting-ofi' the power. From which it will be seen that any vattemptto apply the )ower of the motor when the comptograph is locked results immediately in its eing automatically cut off again.

' The gear wheel 36 carries a roller 52,- ivhich engages a switch 53 to hold the latter closed when said gear wheel is in position of rest,

lT his spring amayserve to keeptlie key 45. i This is theordinary and` im' shall happen to -be locked at thc time when and to break the circuit at this point when the gear wheel is rotated.

54 is an electric incandescent light in the circuit for the purposes of resistance. In the diagram at Fig. 10, 55 is the plug for "connecting the circuit to the prime source of eni ergy; 56 is a common snap switch for cutting the circuit in and out; 57 the series field of the motor; 58 is the armature of the motor;

59 is the shunt field of the motor; 53 is the short circuiting switch; 47 is the motor starting switch between contacts 48, 49, and 60, 61, 62 are three brush contacts to ermit the maintenance of the circuit while t 1e bracket carrying the switch 47. swings through its arc.

The course of the currcnt,-'referring to the diagram Fig. 10-, is as follows: From the attachment plug 55 to the switch 56, thence to the series field 57 thence, dividing, one part passes through the shunt field 59, thence to and through the lamp 54; the other part of the current from the .point of division passes through the armature to the brush contact 60, through the switch bar 47 to the contact49, thence vthrough the brush contact 61 to join the other part'and from the june. tion to the plug 55. c.

lhen the starting switch.47 is in contact with the other point-48- and the short circuiting switch 53 is closed by the operation of the gear 36, the motor is so energized as to act as a brake to overcome whatever mo mentum may exist in the moving parts.

In view of the inventionsclaimedin the co-pending a plication of Harold R. Wellman, Serial for improvements inadding machine attachments, I disclaim the following combinations of elements,

o.. 280,741, filed Sept. 30, 1905,

namely: :In a calculate, j I' t key ing machine, the combination with thev driving shaft thereof, of a crank arm connected to said shaft, a motor, a gear wheel driven by. said motor, ay rod connecting said gear wheel' and crank arm, a switch carried by said crank arm for cutting said motor in or out of circuit, and a key accessible to the operator of the machine vfor closing said switch in a calculating machine, the combination with the driving shaft thereof, ci a crank arm secured on said snat,'a motor, 'a switch carried by said crank armior cutting said motor in or out of circuit, an o erators for closing said switch, an means driven by the motor for o erating said crank arm; in a calculating madhie', the combination with the driving shaft thereof, of a crank arm connected to said shaft, a gear Wheel, a rod connecing said gear Wheel and crank arm, a motor for driving said gear Wheel, a1

switch arm carried by said crank arm, a

'switch member, pivoted to said connecting rod and adapted to operate said switch arm to open or close the motor circuit, a finger key, a tripping lever actuated by said key to engage the switch member and thereby close the switch, nhereby said gear wheel makes one revolution for a momentary de ressing of said key, and a restoring lever in t e path of movement of the switch member and ada ted to operate the same on the return stro e of the connecting rod to open the switch; the combination with a driving shaft 'of a calculating machine, of a crank arm secured on said shaft, a motor, means driven by the motor for rocking said crank arm,

^ said means heine: adjustable to compensate for currents of different voltages, a switch mounted on the crank arm for cutting said motor 1n or out oi-c1rcuit, a finger kev for closing said switch, and a. restoring 'lever ada ted to open the switch on' the return stro e of the crank arm; the combination with a calcnlating machine provided with registering and recording mechanism, -a shaft for driving lthe Same and means for locking the shaft, of a crank arm secured on said shaft, a lever pivoted on said arm, a

gear wheel, a rod connecting said gear wheel and lever, a niotoi for driving the gear Wheel, a switch for cutting the motor in or out of circuit, and a spring connecting the Vlever and crank erm, the tension of said spring- .preventing the movement o said lever on the arm during the normal operation of the shaft, but seidglever being responsive to. the pull of said red-to o en the snit-ch when said .shait is locked; t e combination with a calculating machine, provided with a-driving vshaft and means for locking the saine, of a motor, an erm on said shaft, a lever pivoted to said arm` s yielding connection between the free endL or' said ,'lver and arm, a connection between said lever end niotor for operating the arm, .a switch for closing the cir- 1 to be o erated b yield of said connection to t cuit ofthe motoiysaid switch being z irrangedthe yielding of said lever when t e shaft is locked; thejcombinatiorr4 `shaft ofl a calculating machine, of a crank arm secured on said s aft," a lever ivoted at the upper end ofsaid arm, a coi ed s ring connecting one end of `'said lever wit the lower end of said arm, s gcarwheel, a rod connecting said gear Wheclvand 'said lever, a. motor, -ior driving said gear wheel, a pair of opposing contacts and a switch arm carried by said crank arm `for controlling the circuit of the motor, a switch member pivoted to said rod 'for operatingthe switch arm, a lever for tripping said switch member, a finger key for operating said trippin lever to close the circuit, and a restoring ever in thepath of movement of said switch member and adapted to o crate the same to o en. the circuit during t e return stroke of t erod; thecombination with the driving shaft of a calculating machine, of an electric motor for operating said shaft, and a switch carried by said shaft" for controlling the closing and opening of the motor circuit.

-I claim:

1. The combination of the self-locking tabula'ting adding' machine, having adding and printing mechanism and means for lock ing the same, with a motor, a reversible starting lever and means for reversin vthe starting Alever automatically when the a ding machine is locked as aforesaid, substantially as specified.

2. The combination of an adding machine,

having addin@r and rinting' mechanism, means controlled by t e paper for locking and unlocking the adding and printing mechanism of such-machine, and a motor for actuating such machine, the action of said motor being controlled by the paper, substantially as specied.

3. The combination with the self-locking adding machine having a ower shaftb a ower-driven motor, a yiel ing connection etween the saidv power shaft and said m0- ing the motion which' takes place durine the e starting lever.

to cut off the power, substantially as specilfd. t

4. A tabulating machine and a motor for o erating the same, both the machine and -t e motorrbeing provided with means controlled by the pa er for rendering them 126 tor, a starting lever, and means for impartinoperative when t e bottom of the sheet 130 ele-5,523

ulating is being done is reached, substan tially as specified.

6. The combination with an intermittently driven shaft, of a motor, a crank driven thereby, and a yielding connection between said crank and shaft, whereby the driving operation of the crank is not transmitted 'to the shaft when said shaft is locked.

7. The combination with an intermittently driven shaft, of a motor, a crank driven thereby, a crank carried by said dr'ven shaft, and a yielding connection be-' tween said cranks, whereby the driving operation'of said motor driven crank isvnot transmitted to said other crank when the driven shaft is locked.

8. The combination Awith a calculati 0 machine, provided with a driving shaft aiiil means for locking the same of a motor for driving said shaft and means for rendering said motor inoperative and for resetting the motor parts to their normal position when said shaft is locked.

9. 'Ihe combination with a calculating machine rovided with a vdriving shaft and means for ocking the same, of a motor, a yielding connection between said motor and shaft, a motor circuit, and a switch controllirr the circuit of the motor adapted to be opener bj, the yielding of said connection when the shft is locked.

10. The combination with a calculatin machine provided with a driving shaft an means for locking the same, of a motor for operating saidshaft, a motor circuit, a

switch for closing the circuit of said motor,

and a ielding connection between said H10 tor an shaft adapted to yield and thus render the motor inoperative to drive the shaft when said shaft is locked.

11. The combination with a. calculating lmachine provided with 'a driving Shaft ma means for locking the same, of a motor for operating said shaft, a motor circuit, Aa switch -for cutting said motor in or out of circuit, fmeansmanually operated to close the switch, means automatically operated to open the lsame after a complete operation of said shaft, and a yielding connection between said motor and shaftadapted 'to automaticall o en said switch when said driving shaft is oc ed.

12. The combination with a calculating machine provided with a driving shaft and means for locking the same, of amotor, mechanism driven by said motor for actuating said shaft under normal operation of said calculating machine, a motor circuit,

when the driving shaft is locked.

nation with the driving shaft of the machine, of a motor circuit and a motor, a Wheel driven thereby, means operated by the rotation of said wheel to control the circuit of the motor, and a ielding connection between said wheel an( shaft.

14. The combination with a calculatingl machine provided with a driving shaft en means for locking the same, of a motor, 'gear connection between said motor and shaft, and means for preventing the o eration of said gear when the shaft is locked.

15. In a calculating machine, the combination with a driving shaft and. means for locking the same, of a motor, a crank driven thereby, a crank carried by said dri shaft, a yielding connection between sai cranks, a motor circuit, and a switch controlling the circuit oie the motor, adapted to be opened by the yielding of said connection when the'shaft is locked.

CHAlLES P. WETMORE.

Witnesses: 1

L. J. OITEN,

H. B. Vlfina'rn.V

a switch for cutting said motor in or out of circuit, and means for automatically open` ,n ing said switch and returning the motor", l driven mechanism to its normal position 13. In a calculating machine, the combi- 

